Schema tracker does not track column position

**Is your feature request related to a problem? Please describe.**
Column position is not tracked. It should be.

**Describe the solution you'd like**
Add tracking the column position.

**Describe alternatives you've considered**
N/A

**Additional context**
Schemas with column orders changed are ambiguous changes, i.e. does it change the data layout or not underneath? Best to track column position so users can understand what might have changed.